Asus Z97-AR Manual page 71

The following item appears only when you set the Ai Overclocking Tuner to [Manual].
Filter PLL [Auto]
Set this item to high BCLK (base clock) mode when using a very high BCLK to improve
overclocking capability.
Configuration options: [Auto] [Low BCLK mode] [High BCLK mode]
BCLK Frequency [Auto]
This item allows you to set the BCLK (base clock) frequency to enhance the system
performance. Use the <+> or <-> to adjust the value. The values range from 80.0 MHz to
300.0 MHz.
We recommend you to set the value based on the CPU specification, as high BCLK
frequencies may damage the CPU permanently.
Initial BCLK Frequency [Auto]
This item allows you to start overclocking the system from the initial BCLK (base clock)
frequency to the assigned BCLK frequency. Use the <+> or <-> to adjust the value. The value
ranges depend on the value you set on BCLK Frequency.
The following item appears only when you set the Ai Overclocking Tuner to [X.M.P.].
eXtreme Memory Profile
This item allows you to select the X.M.P. mode supported by your memory module.
Configuration options: [Profile #1] [Profile #2]
2.5.2 ASUS MultiCore Enhancement [Auto]
[Auto] This item allows you to maximize the oveclocking performance optimized
by ASUS core ratio settings.
[Disabled] This item allows you to set to default core ratio settings.
2.5.3 CPU Core Ratio [Sync All Cores]
This item allows you to set the CPU core ratio limit per core or synchronize automatically to
all cores.
Configuration options: [Auto] [Sync All Cores] [Per Core]
When the CPU Core Ratio is set to [Per Core], the following items appear:
1-Core Ratio Limit [Auto]
Select [Auto] to apply the CPU default Turbo Ratio setting or manually
assign a 1-Core Limit value that must be higher than or equal to the 2-Core
Ratio Limit.
ASUS Z97-AR 2-19